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Fig. 1 | BMC Urology

Fig. 1

From: Novel scoring system combined with a virtual reality technique for the preoperative evaluation of the stone-free status after flexible ureteroscopy: the H.L.P.E.S. score

Fig. 1

(A) VR imaging and measurement. 1: Renal pelvis volume (one end is the junction of the renal pelvis and ureter; the other end is the portion of the renal pelvis except for renal calyx). 2: Stone surface area. (B) Length of the calyces funnel (distance between the farthest point of the lower calyx where the calculus is located and the middle point of the lower lip of the renal pelvis). (C) Essence of stone (average CT value of the calculus). (D) Pelvic calyceal height (vertical distance between the horizontal line of the lowest point of the lower calyces where the calculus is located and the highest point of the lower lip)

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BMC Urology

ISSN: 1471-2490

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